ClassID:

168961

G01N31/02 - CPC Classification

Classification description:

Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using precipitation

Recent Application in this class:
#1
20260023060
2026-01-22

METHOD FOR DETECTING TARGET SUBSTANCE

#2
20250189509
2025-06-12

Soil Analysis Methods, Systems and Kits

#3
20250189499
2025-06-12

CHROMIUM-FREE HALIDES DETERMINATION IN DRILLING FLUIDS

#4
20250180539
2025-06-05

Soil Analysis Methods, Systems and Kits

#5
20250137935
2025-05-01

METHOD FOR ASSESSING QUALITY OF AMINE-BASED SHALE INHIBITORS

#6
20250110092
2025-04-03

MICROFLUIDIC CHIP

#7
20240353341
2024-10-24

Method and Device for the Quantitative Measurement of Lead

#8
20240241100
2024-07-18

METHODS, APPARATUSES, AND KITS FOR DETECTION OF LEAD AND OTHER MATERIALS IN WATER

#9
20240053274
2024-02-15

Method for monitoring and/or controlling phase separation in chemical processes and samples

#10
20230251176
2023-08-10

DEVICE AND METHOD FOR DETECTING THE FLOCCULATION THRESHOLD OF A COLLOIDAL MEDIUM, IN PARTICULAR A MEDIUM COMPRISING ASPHALTENES, BY THE ADDITION OF ALIPHATIC SOLVENT

#11
20230071747
2023-03-09

PROCESS FOR QUANTIFICATION OF METAL AMINO ACID CHELATES IN SOLUTIONS AND SOLIDS

#12
20210405017
2021-12-30

Detecting amine-based inhibitors in drilling fluids

#13
20210033579
2021-02-04

Sulfate detection with barium

#14
20210018477
2021-01-21

Determination of asphaltene solubility distribution

#15
20200057042
2020-02-20

Methods for detection of lead in water

#16
20190346460
2019-11-14

MASS SPECTROMETRIC STANDARDS FOR HEMOGLOBIN BETA AND HEMOGLOBIN BETA SICKLE AND USES THEREOF

#17
20190346413
2019-11-14

Process for quantification of metal amino acid chelates in solutions and solids

#18
20190094198
2019-03-28

Chloride measurement using non-harsh reagents

#19
20190017979
2019-01-17

Analytical method for precipitated particles during co-precipitation reaction

#20
20180180581
2018-06-28

Method and device for testing the effectiveness of magnetic treatment of feed water for reducing mineral scaling in reverse osmosis processes

#21
20180113108
2018-04-26

Method of predicting the concentration of asphaltenes using a first precipitant and correlation back to an asphaltene concentration measurement using a second precipitant

#22
20180073354
2018-03-15

Downhole tool and electronics packaging configuration therefor

#23
20180031608
2018-02-01

Shielded probe systems with controlled testing environments

#24
20180017624
2018-01-18

Method for detecting short-circuits in a coil

#25
20170292974
2017-10-12

Shielded probe systems with controlled testing environments

#26
20170168010
2017-06-15

Ion concentration sensor

#27
20170067870
2017-03-09

Method and kit for monitoring catalyst fines in heavy fuel oil

#28
20160377565
2016-12-29

Method and system for on-line monitoring electrolytic capacitor condition

#29
20160099487
2016-04-07

Battery sensor positioner, battery sensor assembly equipped with same, and battery sensor

#30
20160097755
2016-04-07

Method for detecting, capturing and/or releasing chemical elements

#31
20160077076
2016-03-17

On-line wet chemistry analyzer

#32
20150276890
2015-10-01

Power monitoring systems and methods

#33
20150087075
2015-03-26

SULPHUR DETECTION METHOD AND KIT

#34
20140300371
2014-10-09

Device and method to prevent inter-system interference

#35
20130337573
2013-12-19

Method for evaluating chemical stability of polychloroprene latex

#36
20110240477
2011-10-06

Method for analyzing metal material

#37
20100233823
2010-09-16

APPARATUS AND METHOD FOR OZONATION OF FLUIDS

#38
20100041157
2010-02-18

Analysis apparatus and analysis method of chlorosilanes

#39
20060133964
2006-06-22

Closed loop automated matrix removal

#40
20050158862
2005-07-21

Test for sol-gel on aluminum rivets

#41
20050036917
2005-02-17

Module for automated matrix removal